Warming trend continues; lower temps arrive next week

Published: Tuesday, October 17, 2017 @ 7:32 PMBy:
Breaking News Staff

A slow warm-up is getting underway across the Miami Valley which will bring temperatures back up nearly 10 degrees above normal by this weekend. But a surge of very chilly air is brewing up in Canada, and may be getting set to head south. Chief meteorologist Eric Elwell explains when this big change will likely occur.

Temperatures of 70 degrees will return through the weekend as a massive area of high pressure slowly pushes across the eastern half off the country, Storm Center 7 Chief Meteorologist Eric Elwell said.

However, a major pattern shift is underway in northwestern Canada, where colder air is building.

This colder air is forecast by most of the long-range models to begin heading southward into the northern U.S. later this weekend.

“This rain was also accompanied by embedded thunderstorms that not only brought some gusty winds, but enhanced the rainfall. Areas that were low-lying and prone to this type of flooding were impacted the most.”

Storm Center 7’s Live Doppler 7 Radar estimated some areas received up to 2.5-inches of rain in a 24-hour period.

Flood advisories expire for area counties; Flood watch continues

— UPDATE @ 1:41 (Feb. 16): All Flood Advisories issued have now expired, according to The National Weather Service Wilmington.

UPDATE @ 9:55 p.m.: A Flood Advisory has been issued until 1 a.m. for southern Preble and northern Butler counties, according to the National Weather Service in Wilmington.

A Flood Advisory has been issued until 12:30 a.m. for southern Wayne, Union and Fayette counties in east central Indiana. The National Weather Service in Wilmington is reporting that radar indicated an area of heavy rain moving through the area -- 1 to 1 ½ inches in the next hour.

EARLIER REPORT

A Flood Watch remains in effect until Friday afternoon for Shelby, Miami, Montgomery, Logan, Champaign, Clark, Greene, Warren and Clinton counties. A half to 1 ½ inches of rain is possible today. Rising water in streams and creeks is possible. Streets may also experience flooding in low lying or or poorly drained spots. Drivers and those who live near streams or rivers should be cautious.

THIS EVENING : Rain will be likely. A thunderstorm is also possible. There is a low risk a storm could produce strong winds. Rain could also be heavy at times and produce localized flooding. Temperatures will hold near 60 degrees.

TONIGHT: Rain will be likely, locally heavy at times. Gusty winds will remain possible. Temperatures will turn colder by morning, dropping into the middle 30s.

﻿Friday: Widespread rain continues to slowly drift southeast. Showers should be around through about 8 a.m. before exiting completely. Roads will be wet and there will be some high water or ponding in spots through the morning. Conditions dry out through the day with temperatures in the 50s right now but expected to fall through the day getting into the low to mid 30s for the afternoon. We’ll see broken clouds this afternoon as well.

﻿Saturday: Clouds will increase with a threat for rain and/or snow showers in the afternoon and evening. Little or no snow accumulation is expected. Highs will be in the upper 30s.

There could be some standing water in places after overnight heavy rain. Temperatures will slowly fall through the 30s during the afternoon. Skies will clear during the afternoon with partly cloudy skies and chilly conditions tonight.

Clouds will increase Saturday with a chance for rain and snow showers developing by late afternoon. Precipitation will linger into the early evening and taper off late Saturday night. Highs Saturday will hold in the upper 30s.

Skies will clear Sunday with a warming trend underway. Temperatures will reach into the upper 40s Sunday, then soar into the 60s as rain returns on President's Day.

﻿Rivers: Most of the Miami Valley rivers will see their levels rise. There is usually a lag between the rain falling and rivers cresting or reaching their forecasted high levels. Saturday morning, the Great Miami River in Dayton is expected to crest at about 29 feet. This means the bike path can experience some flooding, but it should stay just below the action stage. Mad River in Springfield will also rise, but not enough to cause major flooding issues.

If you leave near a creek, stream or river, watch for changes over the next few days.